class Group{
  List<Group> subGroups;
  List<Member> members;
  String? name;
  String? no;
  String? pid;
  String? levela;
  Group(
      this.subGroups,
      this.members,
      this.name,
      this.pid,
      this.no,
      this.levela
      );

}

class Member{
  String? name;
  String? no;
  String? pid;
  String? levela;
  Member(
      this.name,
      this.pid,
      this.no,
      this.levela
      );

}